Synthesis and thermal stability of nano-RuAl by mechanical alloying

被引：8

作者：

Liu, KW ^{[1
]}

Mücklich, F ^{[1
]}

机构：

[1] Univ Saarland, Dept Mat Sci Funct Mat, D-66041 Saarbrucken, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 329卷

关键词：

nano-grained; single phase RuAl; mechanical alloying; thermal stability; grain growth kinetics;

D O I：

10.1016/S0921-5093(01)01541-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Single phase RuAl has been synthesized by mechanical alloying (MA). The structural evolution during MA and thermal stability of as-milled powders at elevated temperatures have been analyzed by XRD, thermal analysis and isothermal annealing. The results indicate that there are two stages of reaction between Ru and Al in MA before single phase RuAl is obtained, and that the as-milled RuAl undergoes reordering, strain relaxation and grain growth at high temperatures. All structural evolutions show signs of stagnation upon high temperature annealing. The isothermal grain growth kinetics has been analyzed by considering the influence of impurities. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：112 / 117

页数：6

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